prototype vs closures

JavaScript performance comparison

Revision 17 of this test case created by

Preparation code

<script>
  function Person(name) {
    this.name = name;
  }
  
  Person.prototype.get_name = function() {
    return this.name;
  };
  
  Person.prototype.set_name = function(name) {
    this.name = name;
  };
  
  function Human(myName) {
    var name = myName;
  
    this.get_name = function() {
      return name;
    };
  
    this.set_name = function(newName) {
      name = newName;
    };
  
    return this;
  }
  
  var c = new Person('John');
  var b = new Human('John');
  
  ui.benchmarks[2].setup = function() {
    var b = new Person('John');
  };
  
  ui.benchmarks[3].setup = function() {
    var c = new Human('John');
  };
  
  ui.benchmarks[4].setup = ui.benchmarks[2].setup;
  ui.benchmarks[5].setup = ui.benchmarks[3].setup;
</script>
    

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Prototype init
var c = new Person('John');
pending…
Closure init
var b = new Human('John');
pending…
Prototype read
c.get_name();
pending…
Closure read
b.get_name();
pending…
Prototype write
c.set_name('Jane');
pending…
Closure write
b.set_name('Jane');
pending…

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Revisions

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